<template >
  <div class="login_container">
    <div class="login_box">
      <div class="avatar_box">
        <img src="../assets/logo.png" alt="" />
      </div>
      <div>
        <!-- 表单登录区 -->
        <el-form
          label-width="0px"
          class="login_form"
          :model="loginFrom"
          :rules="loginFormRules"
          ref="loginFormRef"
        >
          <!-- 用户名 -->
          <el-form-item prop="username">
            <el-input
              v-model="loginFrom.username"
              prefix-icon="iconfont icon-user"
            ></el-input>
          </el-form-item>
          <!-- 密码 -->
          <el-form-item prop="password">
            <el-input
              v-model="loginFrom.password"
              show-password
              prefix-icon="iconfont icon-3702mima"
            ></el-input>
          </el-form-item>
          <!-- 按钮 -->
          <el-form-item class="btns">
            <el-button type="primary" @click="login">登录</el-button>
            <el-button type="info" @click="resetLoginForm">重置</el-button>
          </el-form-item>
        </el-form>
      </div>
    </div>
  </div>
</template>

<script>
export default {
  name: "Login",
  data() {
    return {
      // 登录表单数据对象
      loginFrom: {
        username: "admin",
        password: "123456",
      },
      // 表单验证规则
      loginFormRules: {
        username: [
          { required: true, message: "请输入你的用户名", trigger: "blur" },
          {
            min: 3,
            max: 10,
            message: "长度在 3 到 10 个字符",
            trigger: "blur",
          },
        ],
        password: [
          { required: true, message: "请输入你的密码", trigger: "blur" },
          {
            min: 3,
            max: 10,
            message: "长度在 3 到 10 个字符",
            trigger: "blur",
          },
        ],
      },
    };
  },
  methods: {
    // 点击重置按钮,重置登录表单
    resetLoginForm() {
      // console.log(this);
      // resetFields()是element里的方法
      this.$refs.loginFormRef.resetFields();
    },

    // 登录按钮
    login() {
      this.$refs.loginFormRef.validate(async (valid) => {
        console.log(valid);
        if (!valid) {
          return;
        } else {
          const { data: res } = await this.$http.post("login", this.loginFrom);
          console.log(res);
          if (res.meta.status != 200) {
            this.$message.error("登录失败,请核对你的账号密码");
          } else {
            this.$message.success("登录成功,欢迎来到叻仔的后台");
            // 调用会话储存 创建新数据 键对值为获取到的数据
            window.sessionStorage.setItem("token", res.data.token);
            // 执行到这条命令的时候会跳转界面  路由地址是  /home
            this.$router.push("/home");
          }
        }
      });
    },
  },
};
</script>

<style lang="less" scoped>
.login_container {
  background-image: linear-gradient(45deg, #fff1eb, #ace0f9);
  height: 100%;
}
.login_box {
  width: 450px;
  height: 300px;
  background-color: #fff;
  border-radius: 3px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);

  .avatar_box {
    height: 130px;
    width: 130px;
    border: 1px solid #eee;
    border-radius: 50%;
    padding: 10px;
    box-shadow: 0 0 10px #ddd;
    position: absolute;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: #fff;

    img {
      width: 100%;
      width: 100%;
      border-radius: 50%;
      background-color: #eee;
    }
  }
}

.login_form {
  position: absolute;
  bottom: 0px;
  width: 100%;
  padding: 0 20px;
  box-sizing: border-box;
}
.btns {
  display: flex;
  justify-content: flex-end;
}
</style>
